Cover for a vehicle brake fluid reservoir



FIG. 1 is a top plan view of a cover for a vehicle brake fluid reservoir showing my new design;

FIG. 2 is a side elevation view looking from the front;

FIG. 3 is an end elevation view looking from the left side;

FIG. 4 is an end elevation view looking from the right side;

FIG. 5 is a bottom plan view; and

FIG. 6 is an inverted side elevation view looking from the back. 

The ornamental design for a cover for a vehicle brake fluid reservoir, as shown. 